ML20023D018

LER 83-022/03L-0:on 830413,overload on Valve Motor 1301-17 Resulted in Loss of High Pressure Core Cooling Backup Capability.Caused by Oxidation in Motor End Bell & Motor Brushes,Due to Humidity Caused by Leaking Valve Packing

ML20023D018
Person / Time
Site:	Pilgrim
Issue date:	05/04/1983
From:	Crowder J BOSTON EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20023D016	List: ML20023D015 ML20023D018
References
LER-83-022-03L, LER-83-22-3L, NUDOCS 8305190029
Download: ML20023D018 (1)

Text

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h l o 12 l l On 4/13/83, while performing the RCIC valve timina (in anticipation of making l l 0 l3 l l HPCI inop. for maintenance) the 1301-17 valve motor indicated an overload. thus l lo l4 l l creating a loss of high pressure core cooling backup capability. RCICwasmadein]

l o lS l l opernble due to the 1'101-17 MOV prnblom nnd nn invoerionrinn en datormino eniico I l 0 l6 l l was initiated. The LCO was met through performance of tests required by T.S. l l

l o l 7 l l Section 4.5.D.2. This event created no threat to the public health and safety. l loIsll' '

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42 43 lGl0l8l01 44 47 CAUSE DESCRIPTION AND CORRECTIVF ACTIONS h 1110llA humid atmosphere, created by leaking valve packing in the near vicinity, caused]

lil'l [ oxidation in motor end bell and on motor brushes. Motor was repaired by G.E., l l1l2ll tested,r un reinstalled. The motor windinas were lacauered and heat treated and l l 1 l 37 l the bearines were replaced before reinstallation. The valve operator was over- l I114 l l hauled and the valve was repacked. No future corrective action is required. l r , ..

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,U.uC,,, 8305190029 830504 is uEn oE.cRiPnON@ PDR ADOCK 05000293 S

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l NA ME oF PREPARER J. D. Crowder PHONE: 617-746-7900 1

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